Panasonic CU-5E36QBU-5 Service Manual page 60

15.2.8 H33 (Indoor / Outdoor Misconnection Abnormality)
Malfunction Decision Conditions

The supply power is detected for its requirement by the indoor/outdoor transmission.
Malfunction Caused

Wrong models interconnected.

Wrong indoor unit and outdoor unit PCBs used.
Troubleshooting
Check the spare part numbers of the
indoor and outdoor unit PCBs and
compare with their Part Lists.
For safety reason and to prevent component
breakdown, always switch off the power before
Caution
remove and connect the component.
Check indoor and outdoor
units model number.
Is the indoor and outdoor
model number matched?
Yes
Matched compatibility?
No
No
Change for the specified
indoor or outdoor unit PCB.
Yes
Replace the indoor and
60
Match the compatible
model.
outdoor unit PCBs.